182 lines
6.6 KiB
Shell
Executable file
182 lines
6.6 KiB
Shell
Executable file
#!/bin/bash
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# Copyright (c) 2025-2026 Cristian Cezar Moisés
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#
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# F-11 regression test (ZUPT 2.4.2).
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#
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# F-11: pre-2.4.2 the AIT-fail message said "archive header or footer has
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# been tampered with" in both the actual-tamper case AND the wrong-password
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# case (because wrong password → wrong mac_key → AIT mismatch). This
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# misled users into thinking valid archives were corrupted when they had
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# just mistyped a password.
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#
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# v2.4.2 collapses both cases into the same generic message by default:
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# "Authentication failed (wrong key, wrong password, or tampered archive)"
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# and moves the detailed top-MAC wording behind --verbose. Identical
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# message for both cases eliminates a verbal probe-oracle. Plaintext-mode
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# tamper detection (no key involvement) keeps detailed wording.
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set -Eeuo pipefail
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repo_root=$(CDPATH='' cd -- "$(dirname -- "$0")/.." && pwd -P)
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ZUPT=${ZUPT_BIN:-$repo_root/zupt}
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if [ ! -x "$ZUPT" ]; then
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echo " ✗ $ZUPT not found — run 'make' first" >&2
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exit 1
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fi
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version=$("$ZUPT" --version 2>&1)
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SDK_ENABLED=0
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if grep -Fq 'libvuptsdk=enabled' <<<"$version"; then
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SDK_ENABLED=1
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fi
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PASS=0
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FAIL=0
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P() { PASS=$((PASS+1)); echo " ✓ $1"; }
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F() { FAIL=$((FAIL+1)); echo " ✗ $1"; }
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capture_expected_failure() {
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local output_name=$1 label=$2 directory=$3 output status
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shift 3
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set +e
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output=$(cd "$directory" && "$@" 2>&1)
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status=$?
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set -e
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if ((status == 0)); then
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F "$label returned success"
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fi
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printf -v "$output_name" '%s' "$output"
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}
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TMPDIR=$(mktemp -d)
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trap 'rm -rf "$TMPDIR"' EXIT
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cd "$TMPDIR"
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echo "F-11 regression: error-message hygiene"
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echo "F-11 payload" > input.txt
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# Test 1: wrong-password message on the build's default KDF (no --verbose)
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"$ZUPT" c -p correct argon.zupt input.txt >/dev/null 2>&1
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mkdir out1
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capture_expected_failure ERR 'default KDF wrong-pw' out1 \
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"$ZUPT" x -p wrong ../argon.zupt
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if echo "$ERR" | grep -q "Authentication failed (wrong key, wrong password, or tampered archive)"; then
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P "default KDF wrong-pw: generic auth-fail message"
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else
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F "default KDF wrong-pw: message wrong: '$ERR'"
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fi
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# Must NOT contain the standalone "header or footer has been tampered with"
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if ! echo "$ERR" | grep -q "header or footer has been tampered with"; then
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P "default KDF wrong-pw: no standalone tamper claim"
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else
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F "default KDF wrong-pw: still claims archive tampered"
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fi
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# Must NOT contain the verbose top-MAC line
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if ! echo "$ERR" | grep -q "archive-integrity-trailer (top-MAC)"; then
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P "default KDF wrong-pw: no top-MAC technical detail"
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else
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F "default KDF wrong-pw: top-MAC leaked without --verbose"
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fi
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# Test 2: --verbose surfaces the technical detail
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mkdir out2
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capture_expected_failure ERR_V 'default KDF wrong-pw --verbose' out2 \
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"$ZUPT" x -p wrong --verbose ../argon.zupt
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if echo "$ERR_V" | grep -q "top-MAC"; then
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P "default KDF wrong-pw --verbose: top-MAC detail shown"
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else
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F "default KDF wrong-pw --verbose: top-MAC missing"
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fi
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if echo "$ERR_V" | grep -q "Authentication failed (wrong key, wrong password, or tampered archive)"; then
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P "default KDF wrong-pw --verbose: still has the generic line"
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else
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F "default KDF wrong-pw --verbose: missing generic line"
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fi
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# Test 3: PBKDF2 archive same behaviour
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"$ZUPT" c -p correct --kdf pbkdf2 pbkdf.zupt input.txt >/dev/null 2>&1
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mkdir out3
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capture_expected_failure ERR3 'PBKDF2 wrong-pw' out3 \
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"$ZUPT" x -p wrong ../pbkdf.zupt
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if echo "$ERR3" | grep -q "Authentication failed (wrong key, wrong password, or tampered archive)"; then
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P "PBKDF2 wrong-pw default: generic auth-fail message"
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else
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F "PBKDF2 wrong-pw default: wrong"
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fi
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# Test 4: actual header tamper on encrypted archive emits the SAME generic
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# message — this is the probe-oracle property.
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cp argon.zupt tampered.zupt
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python3 -c "
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b = bytearray(open('tampered.zupt','rb').read())
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b[15] ^= 1 # creation_time byte
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open('tampered.zupt','wb').write(bytes(b))"
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mkdir out4
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capture_expected_failure ERR4 'encrypted header tamper' out4 \
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"$ZUPT" x -p correct ../tampered.zupt
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if echo "$ERR4" | grep -q "Authentication failed (wrong key, wrong password, or tampered archive)"; then
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P "Actual tamper (encrypted): same generic message — no verbal oracle"
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else
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F "Actual tamper (encrypted): message diverges from wrong-pw case"
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fi
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# Sanity: extract failed
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if [ ! -f out4/input.txt ]; then
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P "Actual tamper (encrypted): extract correctly refused"
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else
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F "Actual tamper (encrypted): extract succeeded — bug"
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fi
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# Test 5: plaintext archive tamper keeps detailed wording (no key, no oracle)
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"$ZUPT" c plain.zupt input.txt >/dev/null 2>&1
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cp plain.zupt ptamp.zupt
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python3 -c "
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b = bytearray(open('ptamp.zupt','rb').read())
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b[10] ^= 1
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open('ptamp.zupt','wb').write(bytes(b))"
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mkdir out5
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capture_expected_failure ERR5 'plaintext header tamper' out5 \
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"$ZUPT" x ../ptamp.zupt
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if echo "$ERR5" | grep -q "corrupted or tampered"; then
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P "Plaintext tamper: detailed XXH64-failure message kept"
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else
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F "Plaintext tamper: detailed message missing"
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fi
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if echo "$ERR5" | grep -q "Authentication failed (wrong key"; then
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F "Plaintext tamper: shouldn't say 'wrong key' (no key involved)"
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else
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P "Plaintext tamper: doesn't conflate with key-mode wording"
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fi
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# Test 6: correct password still extracts successfully
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mkdir out6
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(cd out6 && "$ZUPT" x -p correct ../argon.zupt >/dev/null 2>&1)
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if [ -f out6/input.txt ] && diff -q input.txt out6/input.txt >/dev/null 2>&1; then
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P "Correct password: clean extract preserved"
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else
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F "Correct password: regression — extract broken"
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fi
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# Test 7: when enabled, PQ-SDK wrong key triggers the same generic message.
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if ((SDK_ENABLED)); then
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"$ZUPT" keygen --sdk -o k.priv >/dev/null 2>&1
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"$ZUPT" keygen --sdk -o other.priv >/dev/null 2>&1
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"$ZUPT" c --pq-sdk k.priv.pub pq.zupt input.txt >/dev/null 2>&1
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mkdir out7
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capture_expected_failure ERR7 'PQ-SDK wrong key' out7 \
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"$ZUPT" x --pq-sdk ../other.priv ../pq.zupt
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if echo "$ERR7" | grep -q "Authentication failed (wrong key, wrong password, or tampered archive)"; then
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P "PQ-SDK wrong-key: generic auth-fail message"
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else
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F "PQ-SDK wrong-key: didn't get generic message: '$ERR7'"
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fi
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else
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echo ' SKIP: PQ-SDK wrong-key message needs system libvuptsdk (WITH_SDK=1)'
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fi
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echo ""
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echo " ───────────────────────────────────────"
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echo " F-11 regression: $PASS passed, $FAIL failed"
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echo " ───────────────────────────────────────"
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[ "$FAIL" = 0 ] || exit 1
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